<!DOCTYPE html>
<html lang="en">
<head>
    <style>
        * {
            font-size: 40px;
        }
        #flexContainer {
            background-color: aquamarine;
            height: 500px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
        }
        #flexContainer > div {
            font-size: 50px;
            background-color: rgb(255, 72, 0);
            width: 60px;
            height: 60px;
            border: 1px solid black;
        }
        ul {
            display: flex;
        }
        li {
            margin: 20px;
            list-style: none;
        }
        nav {
            display: flex;
            justify-content: space-between;
        }
    </style>
</head>
<body>
    <div id="flexContainer">
        <div>1</div>
        <div>2</div>
        <div>3</div>
        <div>4</div>
        <div>5</div>
    </div>
    <nav>
        <ul>
            <li>新闻</li>
            <li>地图</li>
        </ul>
        <div>
            <button>登录</button>
            <button>设置</button>
        </div>
    </nav>
</body>
</html>